Helixanthera sp is a species of parasite from the Loranthaceae family which can be used as a medicinal plant. This study aims to isolate and characterize secondary metabolites compounds from n-hexane extract of rubber parasite leaves (Helixanthera sp) and carry out a toxicity test using the Brine Shrimp Lethality Test (BSLT) method. Isolation was carried out using theb maceration method using m…